'cuck' roughly translates to 'i am a dipshit turd person and for some insane reason have decided to announce that fact to anyone unlucky enough to see what i am attempting to communicate' and honestly shamecubing is pretty light for it, i would have probably either cluwned you or straight up gibbed you for it

This could've been handled better with a simple "don't be a twat, please" rather than some advanced shaming procedure, in my opinion. Different servers use different language and I don't think any of us should be surprised someone doesn't know this initially.